@article{26108,
  abstract     = {{The highly efficient filtration of ultrafine dust emitted by biomass combustion processes with a baghouse filter has been successfully tested in the last years. To protect the filter material from the very small and sticky fine dust particles and to guarantee very high total collection efficiencies (> 99 %) in a long-term stable process, the use of a precoat is necessary. Tests done in a laboratory and a real-application plant show that the reuse of precoat materials can lead to significant savings. Considering the influences of different combustion processes, the associated precoat efficiencies could be calculated. With these characteristic ratios, it is possible to evaluate different process settings. Hence, the amount and the cost of the needed precoat could be reduced significantly.}},
  author       = {{Schiller, Sascha and Hellmich, Christoph and Schmid, Hans-Joachim}},
  issn         = {{0930-7516}},
  journal      = {{Chemical Engineering & Technology}},
  pages        = {{491--498}},
  title        = {{{Evaluation of the Efficiency of Filtration Processes Using Precoat Materials}}},
  doi          = {{10.1002/ceat.201500385}},
  year         = {{2015}},
}

@inbook{26119,
  abstract     = {{The emphasis of the study presented is on a new process of particle extraction to transfer magnetite nanoparticles from an aqueous into an immiscible organic phase directly through the liquid-liquid interface. For the production of high-quality organosols, stabilized colloidal and functionalized particles are required in a liquid organic phase. The mechanism of phase transfer is initiated by adsorption and chemical binding of surfactants (fatty acids) at the particle surface. The resulting physico-chemical dispersion of the hydrophobically modified particles leads to the formation of the stabilized organic colloid, or organosol. The aim here is to demonstrate the entire chain of the transfer process in a continuous miniplant, which comprises particle synthesis, conditioning, and transfer, and which uses a drop column for extraction and as a transfer device. Based on the investigation of the governing principles and the material parameters, the results obtained for the transfer kinetics in the individual contact devices (centrifuge, single-drop column, and drop column for different operations) are used for the dimensioning of the entire process chain.}},
  author       = {{Erler, Jacqueline V. and Machunsky, Stefanie and Franke, Steffen and Grimm, Philipp and Schmid, Hans-Joachim and Peuker, Urs A.}},
  booktitle    = {{Colloid Process Engineering}},
  title        = {{{Process Development of a Liquid-Liquid Phase Transfer of Colloidal Particles for Production of High-Quality Organosols}}},
  doi          = {{10.1007/978-3-319-15129-8_16}},
  year         = {{2015}},
}

@article{26121,
  abstract     = {{The conditioning of the aerosol particle population into a bipolar charge equilibrium is an essential prerequisite to calculate the particle number size distribution using mobility particle size spectrometers. This is commonly realized by diffusion charging of bipolar air ions generated by e.g. a 85Kr source. Because of strict legal regulations on radioactive sources in several countries, soft-X-ray (SXR) appears as a suitable alternative. However, multiple measurements showed a systematical and significant difference between the particle charge distribution delivered by a radioactive source and an SXR charger, respectively. In this investigation, a calibrated particle charge distribution, suitable for the SXR chargers, was calculated based on the Fuchs model. An approximation analogous to the commonly used Wiedensohler approximation formula (Wiedensohler, 1988) was computed. The use of the new SXR approximation of the bipolar charge equilibrium for the inversion of an electrical mobility distribution to a particle number size distribution improves the comparability of these results, compared to measurements involving a 85Kr charger or to bipolar chargers using radioactive material in general. A systematic error in case of using the SXR charger could be eliminated and hence the root mean square deviation could be reduced from 13% using the common parameters for both charger types to 7% using the new SXR approximation for the SXR bipolar charger.}},
  author       = {{Tigges, L. and Wiedensohler, A. and Weinhold, K. and Gandhi, J. and Schmid, Hans-Joachim}},
  issn         = {{0021-8502}},
  journal      = {{Journal of Aerosol Science}},
  pages        = {{77--86}},
  title        = {{{Bipolar charge distribution of a soft X-ray diffusion charger}}},
  doi          = {{10.1016/j.jaerosci.2015.07.002}},
  year         = {{2015}},
}

@article{26122,
  abstract     = {{An essential part of mobility particle size spectroscopy is the prediction of the aerosol charge distribution in a highly concentrated bipolar ion environment. This charge distribution can be readily calculated, but is depending on several environmental conditions. These influences are investigated theoretically.

The first part of this work deals with a sensitivity analysis using the Fuchs model (Fuchs, 1963) to determine the variation of the resulting charge distributions depending on the input parameters. It is demonstrated, that the main influencing variable is the difference between the positive and negative ion mobility. A sensitivity analysis reveals that a reasonable variation of the ion mobilities may lead to variations of the particle density distribution up to±20%.

The second part investigates the evolution of the charge distribution along the tubing downstream of the bipolar charger exit starting with equal ion concentrations for positive and negative ions. Due to wall losses depending on ion mobility a non-equilibrium charge distribution is developing along the plumbing. The evolution of the particle charge distribution is determined using a coupled population balance model. Even though the non-equilibrium character is clearly shown, it turns out that this effect is negligible at conditions typical for particle size measurements.}},
  author       = {{Tigges, L. and Jain, A. and Schmid, Hans-Joachim}},
  issn         = {{0021-8502}},
  journal      = {{Journal of Aerosol Science}},
  pages        = {{119--134}},
  title        = {{{On the bipolar charge distribution used for mobility particle sizing: Theoretical considerations}}},
  doi          = {{10.1016/j.jaerosci.2015.05.010}},
  year         = {{2015}},
}

@article{26123,
  abstract     = {{The precipitation of sticky and ultrafine particles has become increasingly important. Biomass burners are one important example for ultrafine dust emission sources with ever growing importance. Therefore, a baghouse filter has been developed, which combines excellent separation efficiency (> 99%, clean air dust loading of < 1 mg/m3) with convenience in operation. However, in order to prevent clogging of the filter cloth by sticky and ultrafine particles, it is necessary to use a precoat layer (e.g. hydrated limestone powder). If this technology is applied to larger scale processes, e.g. biomass burning for industrial drying processes, the reuse of the precoat material can generate significant savings.

Therefore, extended tests on recycling of used precoat material have been performed. Particularly, the influence of precoat injection parameters and various mixing strategies of used and virgin powder for refreshing the precoat material have been investigated. Different mixtures have been characterised by their ability to disintegrate, flowability and filtration behaviour. It is clearly demonstrated that upon redispersing the used precoat fine dust mainly adheres to the coarse precoat with only a limited number of dust agglomerates being produced in addition. For each kind of precoat a minimum amount is determined in order to ensure a long-term stable process. This way a saving potential of between 40–67% has been found.

An economic and ecologic process has been developed to precipitate ultrafine dust in a baghouse filter system using precoat materials.}},
  author       = {{Schiller, Sascha and Schmid, Hans-Joachim}},
  issn         = {{0032-5910}},
  journal      = {{Powder Technology}},
  pages        = {{96--105}},
  title        = {{{Highly efficient filtration of ultrafine dust in baghouse filters using precoat materials}}},
  doi          = {{10.1016/j.powtec.2015.03.048}},
  year         = {{2015}},
}

@article{26124,
  abstract     = {{Capillary forces between particles often dominate other adhesion forces. However, the calculation of the shape of capillary bridges and the resulting force is complex, so often assumptions and approximations are used. These assumptions are not useful for nanoscale particles. Therefore, a simulation method was established to calculate numerically the shape of the meniscus and derive the corresponding capillary bridge force. The main focus are nanoscaled particles with liquid bridges formed by condensing air humidity. The dependence of the capillary force on various parameters such as particle sizes, contact angle and humidity was investigated and it is demonstrated that often-used assumptions cannot be used for nanoscaled particles without remarkable mistake.}},
  author       = {{Dörmann, Michael and Schmid, Hans-Joachim}},
  issn         = {{1877-7058}},
  journal      = {{Procedia Engineering}},
  pages        = {{14--23}},
  title        = {{{Simulation of Capillary Bridges between Particles}}},
  doi          = {{10.1016/j.proeng.2015.01.102}},
  year         = {{2015}},
}

@inbook{2615,
  author       = {{Betz, Stefan}},
  booktitle    = {{Risikomanagement in Supply Chains}},
  editor       = {{Siepermann u.a., Christoph}},
  pages        = {{137--157}},
  title        = {{{Unscharfe Produktionsmengenplanung als Instrument des Risikomanagements in Supply Chains}}},
  year         = {{2015}},
}

@inbook{2616,
  author       = {{Betz, Stefan}},
  booktitle    = {{Ausgewählte Probleme des Logistikmanagements}},
  editor       = {{Betz, Stefan}},
  pages        = {{109--136}},
  title        = {{{Bedarfsorientiertes Kapazitätsmanagement in Supply Chains}}},
  year         = {{2015}},
}

@inbook{2617,
  author       = {{Betz, Stefan}},
  booktitle    = {{Ausgewählte Probleme des Logistikmanagements}},
  editor       = {{Betz, Stefan}},
  pages        = {{211--236}},
  title        = {{{Internationale Standortwahl als strategisches Logistikproblem}}},
  year         = {{2015}},
}

@article{26175,
  author       = {{Kruse, Regina and Sansoni, Linda and Brauner, Sebastian and Ricken, Raimund and Hamilton, Craig S. and Jex, Igor and Silberhorn, Christine}},
  issn         = {{1050-2947}},
  journal      = {{Physical Review A}},
  title        = {{{Dual-path source engineering in integrated quantum optics}}},
  doi          = {{10.1103/physreva.92.053841}},
  year         = {{2015}},
}

@inproceedings{262,
  abstract     = {{Programs from Proofs" is a generic method which generates new programs out of correctness proofs of given programs. The technique ensures that the new and given program are behaviorally equivalent and that the new program is easily verifiable, thus serving as an alternative to proof-carrying code concepts. So far, this generic method has one instantiation that verifies type-state properties of programs. In this paper, we present a whole range of new instantiations, all based on data ow analyses. More precisely, we show how an imprecise but fast data ow analysis can be enhanced with a predicate analysis as to yield a precise but expensive analysis. Out of the safety proofs of this analysis, we generate new programs, again behaviorally equivalent to the given ones, which are easily verifiable" in the sense that now the data ow analysis alone can yield precise results. An experimental evaluation practically supports our claim of easy verification.}},
  author       = {{Jakobs, Marie-Christine and Wehrheim, Heike}},
  booktitle    = {{Proceedings of the 30th Annual ACM Symposium on Applied Computing}},
  pages        = {{1729--1736}},
  title        = {{{Programs from Proofs of Predicated Dataflow Analyses}}},
  doi          = {{10.1145/2695664.2695690}},
  year         = {{2015}},
}

@book{26215,
  author       = {{Keil, Reinhard and Harald, Selke}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{20 Jahre Lernen mit dem World Wide Web - Technik und Bildung im Dialog}}},
  volume       = {{330}},
  year         = {{2015}},
}

@phdthesis{26222,
  author       = {{Peitz, Christoph}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Systematik zur Entwicklung einer produktlebenszyklusorientierten Geschäftsmodell-Roadmap}}},
  volume       = {{337}},
  year         = {{2015}},
}

@phdthesis{26227,
  author       = {{Dorociak, Rafal}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Systematik zur frühzeitigen Absicherung der Sicherheit und Zuverlässigkeit fortschrittlicher mechatronischer Systeme}}},
  volume       = {{340}},
  year         = {{2015}},
}

@book{26229,
  author       = {{Gausemeier, Jürgen and Grafe, Michael and Meyer auf der Heide, Friedhelm}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Augmented & Virtual Reality in der Produktentstehung: Grundlagen, Methoden und Werkzeuge; Interaktions- und Visualisierungstechniken, Virtual Prototyping intelligenter technischer Systeme mit AR/VR }}},
  volume       = {{342}},
  year         = {{2015}},
}

@phdthesis{26233,
  author       = {{Vaßholz, Mareen}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Systematik zur wirtschaftlichkeitsorientierten Konzipierung Intelligenter Technischer Systeme}}},
  volume       = {{346}},
  year         = {{2015}},
}

@phdthesis{26234,
  author       = {{Heinzemann, Christian}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Verification and Simulation of Self-Adaptive Mechatronic Systems}}},
  volume       = {{348}},
  year         = {{2015}},
}

@article{263,
  abstract     = {{In the last two decades, water consumption in Germany has been decreasing, which causes the water tanks and pipes in water distribution systems to work inefficiently. This paper proposes a method that supports the planning process for tanks in water distribution systems. The method uses a combination of network reduction, mathematical optimization and hydraulic simulation. The mathematical optimization model is a non-convex Mixed Integer Quadratically Constrained Program (MIQCP) that is solved by a piecewise linearization. As this may lead to many binary variables and therefore high computing times, the size of the water distribution system model is reduced before building the optimization model. After applying several network reduction techniques and using a piecewise approximation of the original model, there may be some hydraulic differences between the original network model and the reduced network model. To make sure that the solution obtained in the optimization process is feasible in the original water distribution system model, the solution is verified by a hydraulic simulation. If the solution is not feasible, the reduced model has to be modified and solved again until the hydraulic simulation verifies a solution as feasible. In this paper, each of these processes is described and the results indicate the usefulness of each of them.}},
  author       = {{Hallmann, Corinna and Suhl, Leena}},
  journal      = {{OR Spectrum}},
  pages        = {{1--19}},
  publisher    = {{Springer}},
  title        = {{{Optimizing Water Tanks in Water Distribution Systems by combining Network Reduction, Mathematical Optimization and Hydraulic Simulation}}},
  doi          = {{10.1007/s00291-015-0403-1}},
  year         = {{2015}},
}

@article{26330,
  author       = {{Lipfert, T. and Sperling, Jan and Vogel, W.}},
  issn         = {{1050-2947}},
  journal      = {{Physical Review A}},
  title        = {{{Homodyne detection with on-off detector systems}}},
  doi          = {{10.1103/physreva.92.053835}},
  year         = {{2015}},
}

@article{26331,
  author       = {{Agudelo, E. and Sperling, Jan and Vogel, W. and Köhnke, S. and Mraz, M. and Hage, B.}},
  issn         = {{1050-2947}},
  journal      = {{Physical Review A}},
  title        = {{{Continuous sampling of the squeezed-state nonclassicality}}},
  doi          = {{10.1103/physreva.92.033837}},
  year         = {{2015}},
}